Internet Database of Periodic Tables
There are thousands of periodic tables in web space, but there is only one comprehensive database of periodic tables & periodic system formulations. If you know of an interesting periodic table that is missing, please contact the database curator: Dr Mark R Leach.
Use the buttons below to select from the 1000+ Periodic Tables in the database:
Where Your Elements Came From Periodic Table
- The hydrogen in your body, present in every molecule of water, came from the Big Bang. There are no other appreciable sources of hydrogen in the universe.
- The carbon in your body was made by nuclear fusion in the interior of stars, as was the oxygen.
- Much of the iron in your body was made during supernovas of stars that occurred long ago and far away.
- The gold in your jewelry was likely made from neutron stars during collisions that may have been visible as short-duration gamma-ray bursts.
- Elements like phosphorus and copper are present in our bodies in only small amounts but are essential to the functioning of all known life.
The featured periodic table, from Astronomy Picture of The Day (APOD) is color coded to indicate humanity's best guess as to the nuclear origin of all known elements. The sites of nuclear creation of some elements, such as copper, are not really well known and are continuing topics of observational and computational research.
Thanks to Marcus Lynch for the tip!
Top of Page
|Periodic Table, What is it showing?
© Mark R. Leach 1999-
Queries, Suggestions, Bugs, Errors, Typos...
If you have any:
Suggestions or periodic table representations not shown on this page
Suggestions for links
Bug, typo or grammatical error reports about this page,
please contact Mark R. Leach, the author, using firstname.lastname@example.org
This free, open
access web book is an ongoing project and your input is appreciated.